US2678387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: RCA Corp
•
Filing: 1950-04-11
•
Granted: 1954-05-11
•
Expires: 1970-04-11
Abstract
No abstract record available.
Inventors
- 👤 Philip E Volz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:18
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/02; H04L27/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2115881A
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US2226459A
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US2215776A
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US2477615A
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US2432188A
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US2539774A
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US2597038A
Cited
US2598491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |